Head for spinning closures on bottles, jars, and the like



Nov. 3, 1925. 1,560,059

J. A. JOHNSON HEAD FOR SPINNING CLOSUHES 0N"BOTTLES,JARS, AND THE LIKE Filed Feb. 25, 1925 3 Sheets-Sheet 1 In! M W ENTOR m gm 2 ATTORNEY Nov. 3, 1925. 1,560,059

I Y J. A. JOHNSON HEAD FOR'SPINNING CLOSURES 0N BOTTLES,JARS, AND THE LIKE Filed Feb. 25, 1925 s Sheets-Sheet 2 ATTORNEY Nov. 3, 1925. r 1,560,059

J. A. JOHNSON HEAD FOR SPINNING CLOSURES ON BOTTLES,JARS, AND THE LIKE Filed Feb. 25, 1925 3 SheetS -She-et 5 II If! BY MW.

ATTORNEY/Q Patented Nov. 3, 1925 UNITED STATES PATENT OFFICE.

JOHN A. JOHNSON, OF NEW YORK, N. Y.

HEAD FOR SPINNING CLO'SURES ON BOTTLES, JARS, AND THE LIKE.

Application filed February 25, 1925.

To all whom it may concern-.-

Be it .known that I, JOHN A. JoHNsoN, a citizen of the United States, residing at Queens Borough, New York city, in the county of Queens and State of New York,

have invented certain new and useful Improvements 1n Heads for Spmnmg Closures on Bottles, Jars, and the like, of which the following is a specification.

My invention relates to heads for spinning caps or closures onto bottles or jars and the like and it is my object to produce mechanism in which the spinning disks are out of contact with the cap at all times, except while they are actually spinning the metal under the lip on the mouth of the bottle or jar and in which the spinning disks are positively moved and held out of such contact after the spinning operation is complete and before the top sealing pressure on the cap is removed. A further object is the construction of the head in such a manner that undue pressures will be relieved before the bottle or jar can break and to provide sufficient tolerance to permit the capping of bottles or jars whose dimensions vary within permissible commerciallimits.

Heretofore spinning heads have been so constructed that there is a tendency for the bottle or jar to hang in the head after being capped and to be lifted with it. When this occurs in rotary machines, in which a lurality of heads travel in a circle, this hanging has resulted in centrifugal force violently throwing the capped bottle or jar out of the machine to the injury of the operator or others.

In the drawing Fig. 1 is a front view of my head showing the bottle support with a jar thereon; Fig. 2 a detail sectional view showing a portion of the head in its upward position with one of the spinning disks in its out or nonoperative position; Fig. 3 a sectional view of the head in its downward position with the spinning disks in contact with a cap; Fig. 4; a bottom view of the head with one of the spinning disks removed; and Fig. 5 a detail view, partly in section, of the spinning disk mounting.

The head comprises a grooved block 1 in which a slide block 2 reciprocates, the latter being raised and lowered by any of the well known mechanisms. This slide block 2 has two forward extensions 3 and at. A drivshaft 5 with a driving gear 6 thereon passes Serial No. 11,497.

through the extension 3 and has, its lower bearing in the extension 4.

A sleeve 7 passes through the extension 4 and has itsupper bearing'in the extension 3. A pinion 8, narrower than the gear 6 is secured to the sleeve and meshes with the gear 6. The lower end ofthis sleeve 7 opens out into a frame 9 carrying the spinning mechanism. Within the sleeve is a plunger 10 which passes through the upper extension 3 and has a stop 11 adapted to bear against the top of the extension 3 to limit its downward movement. A helical spring 12 surrounds the plunger 10 with its upper end bearing against" the extension 3 and its lower end bearing against a shoulder 13 on the plunger to exert a downward pressure on the plunger. Interposed between the plunger 10 and the inner face of the frame 9 is a thrust bearing 14 which is held in position by a spring15, the upper end of which bears against the thrust bearing and the lower endagainst a shoulder on the plunger 10. On the lower end of the plunger is a top sealing pressure disk 16 which bears against a cap on a bottle or jar to compress the gasket and effect a sealing pressure before the spinning takes place.

In the drawing I have illustrated a head with three spinning disks but any number may be used. I will describe the construction and operation of one of these spinning disks as the others are identical with it.

A pair of lugs 17 and 18 are formed on the under side of the frame 9 at its outer edge. A block 19 is swingingly mounted between these lugs on a pin 20 passing through the block and secured to the lugs. This block 19 carries a stud 22 on which a spinning disk 23 may freely revolve, the stud being locked in place in the block by a set screw 25 entering a socket in the stud as best shown in Fig. 5. A spring 25 between the inner end of the block 19 and the under side ofthe frame 9 normally holds the spinning disk in its outward or inoperative position. Y

A ring 26 is vertically slidable on the frame 9 and the two are normally forced apart by a spring 27 between them. The upper face of this ring bears against the under side of the slide block 2. A pressure button 28 passes through the frame 9 and the ring 26, being limited in its downward movement by a stop 29 and held down by a spring 30 between the ring 26 and the head of the button. The buttons, passing through the ring and frame, cause the two to revolve to gether. The rounded nose of this button bears against the outer end of the swing.- ing block 19.

In operation the head is up as shown in Fig. 2, a bottle or jar a with a cap I) having a plain cylindrical skirt, is placed loosely thereon and the two are placed under the sealing head;

The shaft 5 is revolved in any desiredm'anner causing the sleeve 7 to revolve at a high speed, but the plunger 10 and its at tached partsremains stationary.- 'lhe whole head is then forceddownward by any desired mechanism and the disk 16-bears against the top of the cap 5 to compress the gasket therein and to apply the top sealing pressure, the spring 12 compressing and allowing the plunger 10't'o rise as the downward movement of the head continues.

While this is going on the" frame 9 and its attached parts is rapidly revolving and on the further downward movement. of the head the spring 27 is compressed allowing the frame 9 and the ring'26 to approach-one ttIlOtl181,-l1l16 ring 26' being prevented from rising by reason of" its contact witl'r the underside of the slide block'2. The upward movement of the frame causes-.the buttons 28'to-swingthe blocks 19 inwardly until: the spinning disks 23' contact with? the;skirt.of the cap below therbead on the. neck of the bottle when they begin to revolveon their studs and as the frame and ring continue to approach they: spin the metal of the cap under the bead on the" bottle, any excess pressure being. absorbed. in the springs. 30 which allow the buttons to move upwardly before sufficient pressure can be'builtup. to break: the glass. This compensates also for any irregularities in the sizesofthe bottle or jar. necks. Astlie head rises the spring27 causes the frame 9 and: the ringi 26. to recede fromone another'and the springs 25 swing the blocks outwardly thereby positively moving the spinning disks clear. of the bottle or jar before the pressure on the plunger. 10 is released. The final part of the upward movement of the head lifts the plunger 10 and its attached parts off: the cap so that it is impossible for a bottle or jar tohang: in the spinning. devices and then be thrown violently therefrom in a rotary capping machine.

The ball thrust bearing 14 reduces the friction between the stationary. plunger 10 andthe revolvingsleeve. 7 so that thereis no tendency of the former torevolvewith the latter.

I claim 1. A head for spinning'closures on containers comprising a' slide blOGlQTiJ. sleeve vertically slidable. therein and: terminating in its lower end in a frame, means for revolving said sleeve, a block swingingly mounted in the lower part of said frame, a spinning disk revolvably mounted on said block and. adapted to contact with a closure, a ring on said frame between it and the block, yieldable means fornorma-lly separating the frame and ring, a button mounted on said. ring andiadapt-ed to bear against the outer end of the swinging block, a plunger mounted on the slide blockwithinthe sleeve, the lower end of which is'adapte'd to bear on a closure: top, and'me'ans on said plungerfor exerting a, sealing pressure on a clb'su're:

2. A head for spinning: closures on containers comprising: aslide block, a sleeve vertically slidable therein and terminating at its. lower end in a frame,- means. for 1avolving said sleeve, a: block swingingly mounted in the lower part of said frame, a spinning: disk revolvably mounted? on said block andF adapted to: contact with: a: closure, a ring. on said frame betweenv it and the block, yieldable means for normally sep arating the frame and ring, abutton, yieldable vertically and. mounted on said ring and adapted? to contact with the outer end of the: swinging: block, a plunger mounted on said. slide block within said sleeve the lowerend-aof which is adaptedto bear on a closure top and means on said plunger for exertingv a sealing pressure on aclosure;

3. A. head for spinning: closures 0n con:- tainers comprising; a slide block, a sleeve vertically slidable therein: and terminating at: its lower end in a frame, means for revolving said. sleeve, a-. block swingingly mountediin. the'lower part of said frame, a spinning, disk revolvably mounted. on; said block and adapted to contact with a closure, means for normally holding: theswinging block and spinning; disk in inoperativezposition; away from:.a1closure,-.a ring; on: said frame between it andthe block, yieldable means for normally separatingithe' frame and ring, a button mountedion said rin and adapted to bear on the outer end 0 the swingingblock, a plunger, mounted; on said slide block withintlie sleeve the lower; end ofwhich is adapted to: bear on a closure top and means forv exerting'a-zsealing pressure-on aclosure. I

4:. A head for. spinningclosuresron containers comprising azslide block,..upper and lower extensions thereon,.a shaftinsaid-extensions, a gear on: said shaft, a sleevein said extensions, a pinion on said sleeve meshing with thegear said ,sleeve terminatiing at itslower end in a frame, a; plurality of swinging: blocks mounted on: the lower part: of saidframe, a. spinning disk revolvably mounted. on each of said blocks, a spring between the inner end of eachblock andthe frame, a ringibetween the frame and slide block, a spring between theframe arid ring normal 13 holding them apart, a plurali- I bear on the top of a closure to apply a sealty of buttons slidably mounted on the ring ing pressure, and a spring surrounding said 10 and passing through the frame, the nose of plunger and bearing against it at one end each of which bears on the outer end of a and against the extension at the other. swinging block, a spring on each of said but- In testimony whereof I have aflixed my tons normally holding it down, a plunger signature.

Within the sleeve and extending through the upper slide block extension and adapted to JOHN A. JOHNSON. 

